Rendering学習日記

• Lightflow(Lightflow python script)
• 2010.08.20 Friday

ブーリアン演算を使って、お互いの物体の重なっている部分を表示するには、"intersection"を使う。Lightflowの設定では3つの物体でもまとめて計算できるようだ。便利かも。
csg1 = s.newObject( "solid",
[ "type", "intersection",
"solids", box1, hole ] )

以下はサンプルファイル参考にしてみてください。

#! /usr/bin/env python

from lightflowPM import *

from math import * 



s = scene()



s.lightOn( s.newLight( "point", [ "position", vector3( 5.0, -5.0, 3.0 ), "color", vector3( 300.0, 300.0, 300.0 ) ] ) )



s.lightOn( s.newLight( "point", [ "position", vector3( -3.0, -3.0, 3.0 ), "color", vector3( 300.0, 300.0, 300.0 ) ] ) )



s.lightOn( s.newLight( "point", [ "position", vector3( 3.0, 3.0, 3.0 ), "color", vector3( 300.0, 300.0, 300.0 ) ] ) )



plastic = s.newMaterial( "standard", [ "kc", vector3( 0.096, 0.252, 0.504 ), "kd", 0.5, "km", 0.1 ] )



#cylinder

s.materialBegin( plastic )

s.transformBegin( transform().rotationAroundX( pi*5.0/180 ) )

s.transformBegin( transform().translation( vector3( 0, 0, 2.4 ) ) )

cap1=s.newObject( "disc", [ "radius", 1.0 ] )

s.transformEnd()



s.transformBegin( transform().translation( vector3( 0, 0, 0 ) ) )

cap2=s.newObject( "disc", [ "radius", 1.0 ] )

s.transformEnd()



cyl=s.newObject( "cylinder", [ "radius", 1.0 ,"height",2.4] )

s.transformEnd()

s.materialEnd()



#cylinder with double caps

hole = s.newObject( "boundary", [ "surfaces", cyl, cap1, cap2 ] )







plastic2 = s.newMaterial( "standard", [ "kc", vector3(0.556863,0.137255,0.137255), "kd", 0.5, "km", 0.1 ] )



#box1

s.materialBegin( plastic2 )

s.transformBegin( transform().translation( vector3( 0, 0, 1.2 ) ) )

s.transformBegin( transform().rotationAroundY( pi*45.0/180 ) )

box1=s.newObject( "box", [ "position",vector3( -1.0, -1.0, -1.0 ),vector3( 1.0, 1.0, 1.0 )] )

s.transformEnd()

s.transformEnd()

s.materialEnd()





csg1 = s.newObject( "solid",

		    [ "type", "intersection",

		      "solids", box1, hole ] )



s.addObject(csg1)





saver = s.newImager( "tga-saver", [ "file", "bool04in.tga" ] )



s.imagerBegin( saver )



camera = s.newCamera( "pinhole", [ "eye", vector3( -1.5, -4, 3 ), 

									"aim", vector3( 0, 0, 1 ),

									"aa-samples", 2,5

									 ] )



s.imagerEnd()



s.render( camera, 400, 400 )

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